1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
disa [49]
2 years ago
9

Can you help me4(b–1)²–9​

Mathematics
1 answer:
Tamiku [17]2 years ago
7 0

Answer:

(b-1)²-9​

= 4[(b - 1)(b - 1)] - 9

= 4[b² - b - b + 1] - 9

= 4(b² - 2b + 1) - 9

= 4b² - 8b + 4 - 9

= 4b² - 8b - 5

Hope this helps!

You might be interested in
Leena bought 14 yards of wire. How many inches of wire did she buy? (1 yard = 36 inches)
lawyer [7]

Answer:

504

Step-by-step explanation:

So, lets calculator this.

For each yard, there are 36 inches.

There are 14 yards.

To find the amount of inches in this 14 yards, we need to multiply 14 by 36:

14x36

=

504

So there are 504 inches of wire in 14 yards.

Answer:

<u>504</u>

Hope this helps! :)

5 0
3 years ago
Read 2 more answers
Can someone help me please !
elena55 [62]
The reference angle is
pi/3.

At 180 it would be 9pi/3 so going past that is 10pi/3.

7 0
3 years ago
Simplify the expression below 6m^5+15m^2/3m^2
densk [106]

Answer:6m^5+5

Step-by-step explanation:

To simplify 6m^5+15m^2/3m^2

We get

6m^5+5

8 0
3 years ago
Someone please explain this question PART "b) i" ONLY!!!
Gnom [1K]
<h3>Answer:   (n-1)^2</h3>

This is because we have a list of perfect squares 0,1,4,9,...

We use n-1 in place of n because we're shifting things one spot to the left, since we start at 0 instead of 1.

In other words, if the answer was n^2, then the first term would be 1^2 = 1, the second term would be 2^2 = 4, and so on. But again, we started with 0^2 = 0, so that's why we need the n-1 shift.

You can confirm this is the case by plugging n = 1 into (n-1)^2 and you should find the result is 0^2 = 0. Similarly, if you tried n = 2, you should get 1^2 = 1, and so on. It appears you already wrote the answer when you wrote "Mark Scheme".

All of this only applies to sequence A.

side note: n is some positive whole number.

8 0
3 years ago
If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar because of the _____.
OlgaM077 [116]
B.) If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar because of the "<span>ASA Similarity Postulate"

Hope this helps!</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • A box has dimensions of 14 inches long 1.5 feet wide and 7 inches high what is the volume of the box the formula for the volume
    7·2 answers
  • Is 6/10 larger than 9/15?
    7·1 answer
  • Usan has a collection of 105 nickels and dimes. If the number of nickels is six times the number of​ dimes, how many nickels and
    11·1 answer
  • The lengths of plate glass parts are measured to the nearest tenth of a millimeter. The lengths are uniformly distributed with v
    11·1 answer
  • Misha increased her test score from 60%to 80%. What was the approximate percent increase of misha's test score?
    14·1 answer
  • Given the equation 2x +4 = 4x -2, select the reasoning that correctly solves for x. A.add 2, subtract 2x, then divide by 2. B.ad
    14·2 answers
  • Divide using long division.<br> (9p2 + 8p3 + 12) ÷ (p + 1)
    8·2 answers
  • WILL GIVE BRAINLEST!!!!!!!!!!!!!!! The three graphs represent the types of solutions that are possible for a system of equations
    8·1 answer
  • HELP PLEASEE
    8·1 answer
  • Helpppppppppppppppppppppppppppppppppppppppppppppppppppppp
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!